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Measurement of the centrality and pseudorapidity dependence of the integrated elliptic flow in lead–lead collisions at √sNN=2.76 = 2.76 TeV with the ATLAS detector

Author(s)
Taylor, Frank E.
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Abstract
The integrated elliptic flow of charged particles produced in Pb+Pb collisions at sNN√=2.76 TeV has been measured with the ATLAS detector using data collected at the Large Hadron Collider. The anisotropy parameter, v[subscript 2], was measured in the pseudorapidity range |η|≤2.5 with the event-plane method. In order to include tracks with very low transverse momentum p[subscript T] , thus reducing the uncertainty in v[subscript 2] integrated over p[subscript T] , a 1 μb[superscript −1] data sample recorded without a magnetic field in the tracking detectors is used. The centrality dependence of the integrated v[subscript 2] is compared to other measurements obtained with higher p[subscript T] thresholds. The integrated elliptic flow is weakly decreasing with |η| . The integrated v[subscript 2] transformed to the rest frame of one of the colliding nuclei is compared to the lower-energy RHIC data.
Date issued
2014-08
URI
http://hdl.handle.net/1721.1/91159
Department
Massachusetts Institute of Technology. Department of Physics
Journal
European Physical Journal C
Publisher
Springer-Verlag Berlin Heidelberg
Citation
Aad, G., B. Abbott, J. Abdallah, S. Abdel Khalek, O. Abdinov, R. Aben, B. Abi, et al. “Measurement of the Centrality and Pseudorapidity Dependence of the Integrated Elliptic Flow in Lead–lead Collisions at $$\sqrt{s_{\mathrm {NN}}}=2.76$$ s NN = 2.76  TeV with the ATLAS Detector.” Eur. Phys. J. C 74, no. 8 (August 2014).
Version: Final published version
ISSN
1434-6044
1434-6052

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